For machinists, plumbers, hydraulic technicians, and quality control pros – this is your go-to kit for checking pipe threads. This comprehensive set includes both plug gauges (for checking female/internal threads) and ring gauges (for checking male/external threads) for the entire G-series, also known as BSPP (parallel) and BSPT (tapered) threads, from tiny G1/16 all the way up to G7 inches. It's manufactured to meet strict international standards like ISO 228, BS2779, and DIN 259, with tight tolerances (around ±0.005mm) to give you reliable pass/fail results. Made from hardened steel with an anti-corrosion coating, these gauges are built to withstand the rigors of a workshop or job site. Each gauge is clearly laser-etched with its size (e.g., G1/4, G1/2) so you can quickly grab the right one. Whether you're working on hydraulic fittings, plumbing installations, gas lines, or industrial equipment, having this set on hand ensures your threads are cut correctly before assembly, preventing leaks and costly rework. It's an essential tool for anyone who deals with pipe fittings regularly.
